How should protein intake be managed in a senior dog with chronic kidney disease (CKD)?

• A. Very low protein diet only.
• B. Adequate quality protein supports lean mass; excessive protein may stress kidneys; aim for moderate, high-biologic-value protein with overall renal support.
• C. High-protein diet with no monitoring.
• D. Protein intake is irrelevant to CKD management.

Answer: (B)

In CKD, the goal of protein management is to preserve lean muscle mass while limiting the nitrogenous waste the diseased kidneys have to handle. This means providing enough high-quality protein to meet the dog’s needs but not excess amounts that could overburden the kidneys. High-biological-value proteins deliver essential amino acids efficiently, so you can maintain body protein with a moderate total protein intake. If protein is cut too drastically, the dog can become malnourished and lose muscle, which worsens overall prognosis and quality of life. That’s why the recommended approach is moderate protein with high biological value, paired with renal support such as adequate calories to prevent catabolism and dietary phosphorus control, along with regular monitoring of kidney values and body condition. A high-protein diet with no monitoring risks mismatching needs as CKD progresses, and saying protein intake is irrelevant is not accurate for CKD management.